A new drug known as SR9009, which is presently under development at TSRI (The Scripps Research Institute) has been shown to considerably boost exercise endurance in animal models. Scientists think these discoveries may lead to improved cures for individuals suffering from illnesses that severely limit exercise endurance such as obesity, COPD (chronic obstructive pulmonary disease), congestive heart failure and also in the deterioration of muscle capacity linked with aging.
The drug was developed by Professor Thomas Burris who found that it was capable of reducing obesity in animal models, particularly mice. SR9009 which is an easy to dose oral compound can increase the level of metabolic activity in skeletal muscle of mice. The treated mice became lean, developed larger muscles and had a 50% increase in running abilities which imitates the effects of aerobic exercise.
Stenabolic (SR9009) will help a person become leaner, and it will help them do more distance with cardio without getting winded as fast. Overall, it will increase your VO2 max, allowing you to improve your endurance.
There is a big inconvenience with Stenabolic when compared to Cardarine, SR9009 does not have a long half life, so it is must be dosed 3-4 times per day. However, some forum members have had good success dosing it at 2-3 times per day.